1152817988 has 24 divisors (see below), whose sum is σ = 2309268864. Its totient is φ = 493286400.

The previous prime is 1152817973. The next prime is 1152817993. The reversal of 1152817988 is 8897182511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14168 + ... + 50063.

It is an arithmetic number, because the mean of its divisors is an integer number (96219536).

Almost surely, 2^1152817988 is an apocalyptic number.

It is an amenable number.

1152817988 is an abundant number, since it is smaller than the sum of its proper divisors (1156450876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1152817988 is a wasteful number, since it uses less digits than its factorization.

1152817988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64883 (or 64881 counting only the distinct ones).

The product of its digits is 322560, while the sum is 50.

The square root of 1152817988 is about 33953.1734599286. The cubic root of 1152817988 is about 1048.5446164589.

The spelling of 1152817988 in words is "one billion, one hundred fifty-two million, eight hundred seventeen thousand, nine hundred eighty-eight".